# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1223605022 -7200
# Node ID c5d07fcd0933164ddd79b5a57d8e0bb12e081743
# Parent  65655eaefcefe6cdbc3428c1a8e76b29868e9559
Make the ioctl() signature POSIX compliant.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-10-09  Bruno Haible  <bruno@clisp.org>
+
+	* lib/sys_socket.in.h (ioctl): Make signature POSIX compliant.
+	* lib/winsock.c: Include <stdarg.h>.
+	(rpl_ioctl): Change to second argument 'int' and then varargs.
+
 2008-10-09  Bruno Haible  <bruno@clisp.org>
 
 	* m4/close.m4 (gl_FUNC_CLOSE): Arrange to replace the close() function when
diff --git a/lib/sys_socket.in.h b/lib/sys_socket.in.h
--- a/lib/sys_socket.in.h
+++ b/lib/sys_socket.in.h
@@ -282,7 +282,7 @@
 # if @HAVE_WINSOCK2_H@
 #  undef ioctl
 #  define ioctl			rpl_ioctl
-extern int rpl_ioctl (int, unsigned long, char *);
+extern int rpl_ioctl (int, int, ...);
 # endif
 
 # if @GNULIB_RECV@
diff --git a/lib/winsock.c b/lib/winsock.c
--- a/lib/winsock.c
+++ b/lib/winsock.c
@@ -18,6 +18,7 @@
 /* Written by Paolo Bonzini */
 
 #include <config.h>
+#include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
 #include <errno.h>
@@ -224,10 +225,19 @@
 #endif
 
 int
-rpl_ioctl (int fd, unsigned long req, char *buf)
+rpl_ioctl (int fd, int req, ...)
 {
-  SOCKET sock = FD_TO_SOCKET (fd);
-  int r = ioctlsocket (sock, req, (void *) buf);
+  void *buf;
+  va_list args;
+  SOCKET sock;
+  int r;
+
+  va_start (args, req);
+  buf = va_arg (args, void *);
+  va_end (args);
+
+  sock = FD_TO_SOCKET (fd);
+  r = ioctlsocket (sock, req, buf);
   if (r < 0)
     set_winsock_errno ();